<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>盒模型</title>
        <style>
            div{
                width: 200px;
                height: 200px;
                background-color: #ff6700;
                margin: 30px;
                padding: 10px;
                border: 20px solid #bfa;
            }
            .standardBox{
                box-sizing: content-box;
            }
            .weirdBox{
                box-sizing: border-box;
            }
    </style>
    </head>
    <body>
        <!-- <h2>标准盒模型</h2>
        <div class="standardBox"></div> -->

        <h2>IE|怪异盒模型</h2>
        <div class="weirdBox"></div>

    </body>
</html>